A Dublin woman who tore clumps of hair from a shop worker's head during a vicious attack has been given a three-month suspended sentence.

The victim had told the trial that she was left bleeding with clumps of hair falling out after the incident at the Bayside Inn in Sutton in north Dublin on the afternoon of June 15, 2013.

She had massive bald patches and, two years on, her hair still hasn't fully regrown, she had said.

At the sentence hearing Judge Coghlan described it as "quite appalling" and said the pre-sentence probation report on Smith was troubling. She did not show any contrition and did not engage with the Probation Service in relation to the victim, the judge said.

Pleading for leniency, defence solicitor Leonard Leader said his client was an unemployed single mother who had traumatic experiences and used alcohol as a "harmful bandaid".

He said she now understands the ramifications of her actions and that such a loss of control cannot occur again. He said Smith, who was in tears during the sentence hearing, asked him to convey her apologies.

Judge Coghlan imposed a three-month sentence but suspended it on condition Smith, who has no criminal convictions, stays out of trouble and remains under the supervision of the Probation Service for the next two years.

Judge Coghlan had also said the incident was "nothing short of a vicious assault" and CCTV evidence showed Smith "prowling outside the front of the bar in an aggressive manner".

The court heard Aoife Smith, who had pleaded not guilty, had been outside the pub with a friend drinking Fat Frogs and she started to verbally abuse Emma Dixon when she arrived at the pub with her boyfriend and their dog.

During the trial in May, the court was told Smith blamed Ms Dixon for being barred from a shop in which she worked.

It took the efforts of two men to release her grip on Ms Dixon's hair, Judge Coghlan heard.

Ms Dixon told the court she had tried to ignore Smith's taunting and she went into the pub with her boyfriend. She said Smith entered and told her "you got me barred from that bleeding shop". She said Smith grabbed her by the back of her head and pulled her down.

Ms Dixon said her boyfriend Stephen Murphy tried to stop Smith but he tripped over a dog lead.

"She had me on the ground and would not let go, kept pulling my hair," Ms Dixon said. She said her boyfriend and bar manager Paul Lynch, who both gave evidence for the prosecution, eventually "unclenched her fingers, it took them a few seconds to do that".

She told the trial Smith had "twisted her fingers" around her hair.

The victim told the court she suffered "massive hair loss". In the two years since the incident, she said, her hair has "grown half way down, I am still not able to wear it down, it's still not as thick".

Banter

Smith gave evidence and denied being the aggressor and claimed she was attacked first after she had "a bit of banter" with her friend.

She claimed she slipped and Ms Dixon fell on her and her hair had been grabbed too. She said that when Ms Dixon and her partner had first entered the pub she thought they said something to her and she replied "shut up you dope".

Gda Shane Buckley attended the scene and found that Smith "appeared to be aggressive and intoxicated". The case had been adjourned until yesterday to allow for the preparation of probation reports on Smith and for a victim impact statement to be furnished to the court.